Ore-cooler.



R. W. HANINGTON.

ORE COOLER.

APPLICATION FILED MAR.19, 1913. 1,101,438, Patented June 23, 1914.

2 SHEETS-SHEET l.

mum Rmb? COLUMBIA RLANOGRAPH co., WASHINGTON. D. c.

R. W. HANINGTON.

ORE COOLER.

APPLIUATION Hmm 11113.19, 1913.

Patented June 23, '1914.

2 SHEETS-SHEET 2.

rlT

ROBERT W. HANINGTON, F DENVER, COLORADO.

' oRELoooLER.

Specification of Letters Patent.

Patented June 23, 1914.

Application led March 19, 1913. Serial No. 755,358.

To all whom it may concern:

Be it known that I, ROBERT W. HANING- TON, a citizen of the United States, residing in the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Ore-Coolers; andI do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in coolers and is adapted particularly for use in cooling ores after the same havebeen roasted or sintered. l

One of the objects of the invention is to increase the available cooling surface for a cooler of a given length and diameter.

Another object of the invention is to provide an apparatus which will agitate the ore to a greater extent than has been customary in previous devices, for the purpose of better exposing the particles to the cooling surfaces.

Still another object of the invention is to provide means for feeding cooling water into the inside of the inner cylinder.

A further object is to so construct and mount the cylinders that the inner one may be drawn out of the outer one whereby access may be had to the operating surfaces of each for purposes of repair and the like.

Other objects will appear hereinafter as I proceed with the description of that embodi-V ment of the invention which for the purposes of the present application, I have illustrated in the accompanying drawings, in which:

Figure 1 is a central vertical longitudinal section taken approximately upon the line 1 1, Fig. 2. Fig. 2 is a cross sectional view upon the line 2-2, Fig. 1, and showing the parts upon a larger scale.

The same reference characters refer to like parts throughout the views.

In the drawings, which form a part of this specification 5 refers to a trough shaped re-v ceptacle at the ends of which are built piers 6 and 7. In practice, the trough and piers will probably be made integral and of concrete. At the lower extremity of the receptacle 5 is a draweoft' pipe 3. VAt the top of the pier 6 is mounted a short standard 8 which supports a halved bearing 9. Upon the pier 7 is removably secured by means of bolts 10 and nuts 12 a comparatively long standard 13 supporting a halved bearlng 14, the parts of which are secured together by bolts 15 and nuts 16.

Rotatably mounted within the bearings 9 and 14 is a hollow shaft 17 closed at one end by a cap 18 in which is a spigot 19 from which water may be drawn to cool the upper part of the shaft and through which any steam that is formed in the upper part of the shaft may be released. Just above the bearing 9 a pulley 2O is attached to the shaft. Any available power source may be employed and power transmitted to the pulley 20 by a belt (not shown). At the opposite extremity of the shaft I attach a rotatable joint 21 to which is connected a pipe 22 leading to a source of water supply. Arranged in the pipe 22 is a stop-cock 23 for turning on and off the water and regulating the pressure. That portion of the shaft which is within the cooler is provided at intervals with perforations 24 and with a short nozzle 25 inclined toward the upper end of the shaft. Surrounding the shaft 17 somewhat below its upper bearing is a collar 26 which is set in position upon the shaft by means of a screw bolt 27. The lower end of the collar 26 is provided with a flange 28 to which is secured by bolts 29 a sheet metal plate 30 having an obliquely inclined rim 31. Upon therim 31 is riveted a conical sheet metal member 32 having at its base a flange 33 which is bent parallel to the axis of the shaft 17. A cylinder 34 is riveted at its upper extremity to the flange 33. At its lower extremity it is riveted to a ring 35 which is supported by radial arms 36 and by a collar 37 with which said radial arms are integral, said collar being fastened in position upon the shaft 17 by a screw bolt 38. The lower edge of the cylinder 34 is reinforced by a ring 39 of angle bar metal.

Upon the exterior surface of the cylinder I mount a series of flights 40 of Z-shape. These flights are not continuous from one end of the cylinder to the other but are composed of comparatively short pieces and terminate at some little distance above the lower end of the cylinder. Extending outwardly from the collar 26 are radial arms 41 which at their outer ends are integral with a ring 42. To the inner side of the ring 42 is riveted a frusto-conical member 43 open at its forward end and reinforced by a ring 44, angular in cross section. To the outer side of the ring 42 is riveted one end of a cylinder 45. At its opposite end the cylinder 45 is supported from the cylinder 84 by angle brackets 4 which. are riveted to the cylinder 34 somewhat above the lower end thereof, the ends of said angle brackets being secured by bolts 47 to one flange of a reinforcing ring 48 which is riveted upon the cylinder 45.

@n itsinner surface, the cylinder 45 carries flightsl 46 similar in shape to the' flights 40 but arranged in staggered relation thereto. If desired, the flights '40 and 46'- may bothbe arranged slight-ly at an angle to the axes of the cylinders in order to constitute spiral ribs which will assist in feeding the ore from one end to the other. By terminating the flights at` some litt-le distance above the lower extremity of the outer cylinder, I permit the ore to slide freely to the bottom and out into an inclined chute 49 which cn- Veys it away from the cooler. The chute isl provided on one side w-ith a stop plate 50 to prevent spilling of the ore.

At the juncture of the cylinder- 45-and the cone shaped member 43, I mountl at inten vals around the circumference inclined deflecting plates 5l which catch the ore as'it is fed down a chute 52 and direct it into the space between the cylinders. Above the cyl"- inders, I arrange a trough 53: which is provided at its lower corners with perforations- 54.k Water is delivered to the trough 5-3 freni a pipe 55 in which isa stopcock 56.

Owing to the inclined position of the shaft i7, it is necessary to provide means for holding the shaft against longitudinal move.- ment'. For this purpose, I employy al collar 57 xed in position upon the shaft by means o-ff a set screw 58', the collar 57 abutting against the bearing 14 for retaining the shaft inposition.

'Ihe operation of myv improved rotating cooler` will be largely apparent from thev above disclosure. Rotation of the cyliners y should bein the direction of arrow A, Fig. 21., As` the ore is fed into the space between the cylinders, it is caught by the flights 46: As--each fiight proceeds upwardly its carrying capacity is lessened and the ore which it supports gradually rolls off its inner edge, at first falling upon the fiight 46 next below. But after each flight 46 passes the horizontal position, its ore begins to fall upon the flight 40, next below, and continues: to do so until' the flight 46 has come to the vertical 'position directly a-bove the shaft 17. In the meantime, the fiight 40 next below, has received this load andl has carried it up wardly, the ore being gradually spread out upon the surface ofthe inner cylinder which is kept coolby the continuous spraying of water upon its inner surface. Asthe flights .46 proceed from the vertical position directly above the shaft to the three-quarter position, they are entirely free from contact with the ore and their heat is absorbed Vthrough conduction by the water upon the outer surface of the cylinder 45. After they pass this three-quarter position, ore again drops upon them: from the flights 40 which are given an opportunity to cool. It will, of course, be understood that during rotationV of the cylinders, the ore passes consta-ntly downward toward' the lower end of the cool-"er'due to@ the action of gravity and tothe spirali arrangement of the fiights.

It is very desirable that means be; provided for permitting the cylinders t'obe readily separated in order that the fiights may be renewed andother repairs made fromv time totime'. To this end', I have made the pier 7 short and the standard lvlremlovable' the-refrom. When it is necessary to draw outthe inner cylinder, I remove nuts 12' andir 16v those upon the bolts47. rlhen, I` rem-ovethestandard f3, bearing 14 and connection with the water pipe22, loosen the boltsf29, 38 and 58, remove the collar 57 a-nd slide the inner cylinder to the right (Fig. 1.) upon.r the shaft i7. Y

Although I have herein described the ele' ments of my'improved cooler with some par-v ticu'larity it should be understood that such description is:y merely illustrative'of one ernbodiment that the invention may' take,fsince` it is obvious that' minor changes in the: details of construction may be made without departing from the essentials of my invention as setv forth in the appended claims.

I clairn asf invention r'V l. In combination, a receptacle, a hollow cylinder lmounted' torotate' in said: receptacle, flightsuponthe outer surface of` said cylinder, a. hollow shaft uponI which said cylinder which water may pass.

2f'. Inl combinatiom twoV rotating cylinders:

fm'ounted concentricalily upon.: inclined axis, the inner cylindery extending beyond the outer cylinder at thelower end, the outer cylinder being open atv both ends and! the inner cylinder' being open: at' the lower end?, mean-s for sprayingthle outer surface of the outer cylinder, means 'for spraying the inner surface of the inner cylinder, means' for feeding material toi be cooled to. the space between the cylinders at the lhigher endV thereof, and means above the lower extremity of'the inner cylinder for conveying7 away material delfivered from the lower end of the space betweenthe cylinders.

3. In a: cooler', two` rotatable cylinders, mounted concentri'cal-l-yv upon a Vcommon shaft, the outer of said cylinders being open at one extremity and the attachments of said inner cylinder to the shaft being releasable, the inner cylinder being then readily slidable upon the shaft out of the outer cylinder.

4. In combination, two rotating cylinders mounted concentrically upon an inclined axis, the inner cylinder extending beyond the outer cylinder at the lower end and being open at said end, means for spraying the inner surface of the inner cylinder, means for feeding material to be cooled to the space between the cylinders at the upper end thereof, and means above the lower extremity of the inner cylinder for conveying away material delivered from the lower end ofthe space between the cylinders.

5. In combination, a receptacle, a hollow cylinder mounted to rotate in said receptacle, a hollow shaft upon which said cylinder is mounted, means for introducing water into said shaft, the latter being provided inside the cylinder with means through which water may pass.

6. A cooler, comprising two cylinders of dierent diameters, a hollow shaft upon which one cylinder is mounted concentrically within the other, means for introducing water into said shaft, the latter being provided inside the cylinder with means through which water may pass.

7. A cooler, comprising two cylinders of diii'erent diameters, a hollow shaft upon which one cylinder is mounted concentrically within the other, liights upon each of said cylinders extending into the space between the cylinders, the ights upon one cylinder being arranged intermediate the flights upon the other cylinder, and means for introducing water into the hollow shaft, the said shaft being provided inside the cylinder with perforations through which water may pass.

in testlmony whereof I aliX my signature in presence of two witnesses.

ROBERT lV. HANINGTON.

Witnesses:

A. J. OBRIEN, ANNA Lomsn LEHMAN.

Copies of this patent may be obtained tor ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

